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ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/12033

12033

ZIP 12033 is Castleton On Hudson, New York, in Rensselaer County; area codes 518 and 838; Eastern time.

Type
Standard
Time zone
America/New_York
County
Rensselaer
Population
7,932
Coordinates
42.5331, -73.7001
☼ Live from 12033 — Castleton On Hudson, NY

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Local time: —

Where 12033 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 12033
  • 🔢 Type 12033 into a pocket calculator and turn it upside down: EEOZI — not quite a word, sorry.
  • ➕ As a number, 12,033 = 3 × 3 × 7 × 191. Its digits add up to 9, a total 375 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111100000001
  • 🏠 Its numerical neighbours: 12032 (Caroga Lake, NY, 69 mi away) and 12035 (Central Bridge, NY, 37 mi away).
  • 🔄 Backwards, 12033 becomes 33021 — and that is a real ZIP code: Hollywood, FL, 1,198 miles away.
  • 👥 30 other ZIP codes are made of exactly the same digits (02133, 02331, 03231, 12303, 13032, 13203, …). The farthest-flung twin is 33102 in Miami, FL, 1,215 miles away.
  • 🧭 Farther north than 79% of all ZIP codes, and farther east than 92%.
  • 🎯1,302 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 12033 and you would come out at 42.53°S, 106.30°E — 899 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 18m of daylight. Shortest: 9h 03m.
  • 📏 At 28.5 square miles of land, 12033 is bigger than 45% of ZIP codes — room for about 22 Central Parks.
🌙 The sky over 12033 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population7,932This ZIP7,932
Households3,537This ZIP3,537
Housing units3,937This ZIP3,937
Median age47.7This ZIP47.7New York39.8US 38.9
Median household income$98,569This ZIP$98,569New York$85,974US $80,734
Median home value$288,700This ZIP$288,700New York$423,800US $332,700
Median gross rent$1,292This ZIP$1,292New York$1,621US $1,413
Bachelor's degree or higher36.0%This ZIP36.0%
Mean commute23.6 minThis ZIP23.6 min
Population density278.3 / sq miThis ZIP278.3 / sq mi

Business and tax activity

Business establishments192This ZIP192
Employees3,495This ZIP3,495
Annual payroll$193,760,000This ZIP$193,760,000
Tax returns filed4,140This ZIP4,140
Total adjusted gross income$389,374,000This ZIP$389,374,000

Land area

Land area28.50 sq miThis ZIP28.50 sq mi
Water area0.59 sq miThis ZIP0.59 sq mi

Other place names in 12033

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 12033

ZIPCityDistance
12063 East Schodack, NY 3.9 mi
12156 Schodack Landing, NY 4.2 mi
12123 Nassau, NY 4.8 mi
12061 East Greenbush, NY 5.1 mi
12132 North Chatham, NY 5.5 mi
12077 Glenmont, NY 5.5 mi
12158 Selkirk, NY 5.8 mi
12045 Coeymans, NY 6.2 mi
12144 Rensselaer, NY 6.6 mi
12130 Niverville, NY 6.7 mi

Find every ZIP code within 10 miles of 12033 →

Questions about this ZIP code

Where is ZIP code 12033?

12033 is in Castleton On Hudson, New York, in Rensselaer County, part of the Albany-Schenectady-Troy, NY metropolitan area. Its published point location is 42.5331, -73.7001.

What county is 12033 in?

12033 lies in Rensselaer County.

What area code is 12033?

Castleton On Hudson uses area codes 518 and 838, from NANPA's telephone records.

What time zone is 12033 in?

12033 uses America/New_York.

How many people live in 12033?

About 7,932 people live in ZIP code 12033, in 3,537 households, at 278.3 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 12033?

$98,569 a year, against $85,974 across New York.

What ZIP codes are near 12033?

The closest are 12063 (3.9 mi), 12156 (4.2 mi), 12123 (4.8 mi), 12061 (5.1 mi) and 12132 (5.5 mi).

Is 12033 a PO Box ZIP code?

12033 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “12033 ZIP Code — Castleton On Hudson, New York (Rensselaer County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/12033

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